USP Connectors
USP Connector Products

Adjustable Deck Tension Tie

Deck & Fences

ADTT-TZ Adjustable Deck Tension Tie (out of box)
ADTT-TZKT Adjustable Deck Tension Tie Kit Method for opening ADTT-TZ ADTT-TZ (ready for installation) Typical ADTT-TZ extended installation Adjustable Design Figure A Typical ADTT-TZ contracted installation

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ADTT

Reference Series: DTT1Z, DTT1Z-KT


Section R507.2.4 of the 2015 International Residential Code (IRC) has included new prescriptive construction details that require the builder to install connections to transfer lateral loads from the deck to the house structure. IRC Figure R507.2.3(2) specifically shows the requirement of installing a “Hold-Down Device” with a minimum allowable tension load of 750 lbs in four (4) locations on the deck.
Features:
• Exceeds "Hold-Down Device" requirements per 2015 IRC, Section 507.2.4 [Figure R507.2.3(2)].
• Adjustable design accommodates multiple deck joist depths (2 x 8, 2 x 10, or 2 x 12). USP WS8-HDG or 3/8-in HDG lag screws may be installed adjacent to or up to 4-3/8-in below deck joist (see Figure A).
• 2-hole break-out washer (BO-W) will work with either USP WS screws or 3/8" lag screws.
• Adjustability minimizes the need for additional blocking.

Materials: 14 gauge

Finish: G-185 galvanizing

Code Reports: View Code Report Table


Resources

USP Product Catalog


Technical Bulletins


Installation

  • Install with USP's WS8-HDG wood screw or 3/8-in HDG lag screw.
  • Drive screw horizontally and aligned vertically with the deck joist into the Wall Top Plate of the main (house) structure.
  • Install four (4) of the specified joist fasteners into vertical legs (Two (2) on each side of deck joist).
  • Secure front brace with six (6) specified joist fasteners.
  • Re-tighten the WS8-HDG or 3/8-in lag screw as needed to fully engage with the ADTT-TZ. DO NOT OVERDRIVE. Note: Minimum 3-in thread penetration required for proper installation of the WS or lag screw.
  • For ADTT-TZ detailed installation instructions refer to Click here for English, Click here for Spanish
  • For ADTT-TZKT detailed installation instructions refer to Click here for English, Click here for Spanish

Videos

ADTT-TZ Adjustable Deck Tension Tie Installation Instructions


Need Help or Have a Question? Contact Customer Service or Call 800-328-5934

 

 

 

Code Report Table

USP Stock# ICC-ES IAPMO FLORIDA LA CITY
ADTT-TZ
3847 FL17324 RR 26048
ADTT-TZKT
No Code Listing

 

Drawing Library

3-View Product Drawings
USP Stock# Download or View Files
ADTT-TZ DWG DXF PDF View Image

Application Drawings
USP Stock# Download or View Files
ADTT-TZ Full Extension DWG DXF PDF View Image
Flush Extension DWG DXF PDF View Image